Bolster.



PATENTED APR. 30, 1907.

A. LIPSGHUTZ.

BOLSTER.

APPLIOATION FILED NOV. 22, 1906. v

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ARTHUR LIPSCHUTZ, OF CHICAGO, ILLINOIS.

BOLSTER.

Specification of Letters Patent.

Patented April 30, 1907.

Application filed November 22,1906. Serial No. 344,602.

T0 to whmn it may (to/warn.-

Be it known that I, ARTHUR LIPSCHUTZ, a citizen of the United States,residing at Chicago, Cook county, Illinois, have invented a certain newand useful Improvement in Bolsters, of which the following is a full,clear, and exact description, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings forming part of this specification, inwhich Figure 1, is a side elevation of a body bolster, and truckbolster, embodying the features of my invention Fig. 2 is a crosssectional view of the bolsters shown in Fig. 1; the right-hand side ofsaid figure being taken at approximately the centers of the bolsters,and the left-hand side being taken adjacent to the ends of the bolsters;Fig. 3 is a detail perspective view of one of the side members of thebolster; Fig. 4 is a top plan view of the body bolster; and Fig. 5 is across-sectional View of a side member of I-shape in cross section.

This invention relates to bolsters for railway rolling stock andparticularly to that type which are substantially box-shape in crosssection, and vary in depth from their centers toward their oppositeends.

The object of my invention is to provide a bolster which can bemanufactured at a small cost and which will be strong enough to standthe strains to which it is subjected.

To this end, I use two parallel flanged members to form the side wallsof the bolster and bend the webs of the end portions of each of saidmembers so that the upper and lower flanges thereof will be closertogether at the end portions of the bolster than at the central portion,said flanged members being connected together in any suitable manner, sothat an approximately box-shaped bolster is produced which varies indepth from its conter toward its opposite ends. This same constructionis applicable to body bolsters and truck bolsters, and in the drawingswhich represent the preferred form of my invention, both forms ofbolsters are shown.

Referring to the drawings, 1 designates parallel flanged members whichmaybe either rolled or of pressed metal and either of channel form orI-shape or Z-shape in cross section.

In the bolsters shown in Fig. 1, the flanged members 1 are of channelform and the webs 2 of said members at the end portions of the bolsterare bent at 3 so that the upper and lower flanges of said members willlie closer 'together at the end portions of the bolster than at thecentral portion thereof. It is immaterial in just what form or shape thewebs of the members 1 are bent so long as the upper and lower flangesare brought closer together at the end portions of the bolster than atthe center, but I have herein shown said webs as provided with substantially angular bonds 3.

The two parallel members 1 may be connected together in any suitablemanner but I prefer to use top and bottom plates 1 and 5 which arefastened to the upper and lower flanges of said members by rivets 6.

In a body bolster in which the webs of the parallel members 1 areprovided with a gradual right angle bend as shown in Figs. 1 & 2, theunderneath half of the end portions of the bolster will be of less widththan the upper half thereof so that the end portions of the bottom plate5, will be formed tapering.

In Fig. 5 I have shown the form in which I bend an I-beam when flangedmembers of this shape in cross section are used in place of channels.

Having thus described my invention, what I claim as new and desire tosecure by Let ters Patent is:

1. A bolster consisting of parallel flanged members having their websbent at the end portions of the bolster so as to bring their upper andlower flanges closer together but in different vertical planes, andmeans for fastening said members together; substantially as described.

2. A bolster in which the sides are com posed of flangedmembers thathave their webs bent so that the end portions of the bolster will be ofless depth than the central portion thereof and the flanges of saidmembers will be in different vertical planes; substantially asdescribed.

3. A bolster consisting of two parallel flanged members connectedtogether, the webs of said members being bent out of their normal planesto produce a bolster which varies in depth from its center toward itsopposite ends, the flanges of said members lying in different verticalplanes substantially as .described.

4. A bolster comprising parallel flanged members, the webs of which arebent out of their normal planes at the end portions of the signature inthe presence of two witnesses, bolster, thereby causing the flanges ofsaid thislSth day of October 1906.

members to lie in different vertical planes,

and top and bottom plates connected to the ARTHUR LIPSOHUTZ 5 flanges ofsaid members; substantially as de- Witnesses:

scribed. ANNA F. WAIT,

In testimony whereof I hereunto affix my M. F. HUNTOON.

